Of portland



(No Model.)

A. GARTNER. SPINDLE SUPPORT.

No; 570,205. Patented Oct. 27,1896.

ATTORNEYS V UNITED STATES PATENT OFFICE.

ALFRED GARTNER, OF NEWARK, NEW JERSEY, ASSIGNOR TO THE SAIVYER SPINDLE COMPANY OF MAINE, OF PORTLAND, MAINE.

SPlNDLE-SUPPORT.

SPECIFICATION forming part of Letters Patent No. 570,205, dated October 27, 1896.

Application filed March 16 1896.

To all whom it may concern:

Be it knownthat I, ALFRED GARTNER, a citizen of the United States, residing in Newark, county of Essex, and State of New J ersey, have invented certain new and useful Improvements in Spindle-Supports; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification The object of this invention is to provide a support for spring-spindles whereby said spindles are given a yielding motion, with the center of oscillation above the rail, and whereby the tightness of the driving belt or band can easily be regulated by means of the said spindle 4 supports without interfering with the operation of the spindles.

The invention consists in the improved spindle-support, its adjusting and yielding means, and in the combination and arrangement of the various parts thereof, substantially as will be hereinafter more fully described, and finally embodied in the claim.

Referring to the accompanying drawings, in which like letters of reference indicate corresponding parts in each of the several views, Figure 1 is a front elevation of my improved spindle-support, the rail being shown in section Fig. 2, a View similar to Fig. 1, illustrating a modified form of the support; and'Fig. 3, a sectional view on the line a; x of Fig. 1.

In said drawings, a represents thespindlerail, provided with a vertically-arranged hole or opening 1), adapted to receive the tube 0, which is of smaller diameter than the said opening I) and which contains step and bolster bearing for the spindle cl, to which latter is secured the whirl e, operated through belt or band f, all of usual and well-known construction.

Integral with the tube 0 or secured thereto in any desired manner and above the rail is the flange g, provided with two lugs h, arranged diametrically opposite each other and substantially at right angles to the direction Serial No. 583,350. (No model.)

of the driving band or belt. Each of said lugs is provided with an elongated slot h, Fig. 3, substantially parallel with the said driving-band, and is adapted to be secured to the rail by means of the bolts 2'. Between the lug h and the top of the rail is arranged a washer is of any suitable elastic material, as in Fig. 1, or a spiral spring a, as in Fig. 2. In the latter case the lower portion of the spiral spring rests in a recess 0 of the rail and its upper portion in a recess 7L2 of the lug h. V

In operation by adjusting the boltst' the flexibility of the spindle is increased or decreased, and by unloosening one of the bolts "6 and swinging the support on the other bolt the tightness of the driving-band can easily be regulated without interfering with the operation of'the spindle.

From the foregoing it can be seen that the center of oscillation is above the rail, and thus the vibration or yielding of the spindle is greatly reduced, yet sufficient to render the spindle reliable and effective in operation.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The combination with the spindle-rail, the whirl-driven spindle and its driving-band, of a tube, containing step and bolster bearing for said spindle, loosely mounted in said rail, two lugs projecting horizontally from said tube and arranged diametrically opposite each other and at right angles to the driving-band,

ALFRED GARTN ER.

\Vitnesses:

THOMAS W. RANDALL, DUNCAN M. ROBERTSON. 

